Zip Code 45368, South Charleston, OH. Get all this data for every U.S. ZIP Code in 1 easy to use database. Map the boundaries of this ZIP Code and others on any map platform.
, works at Various Contracts. An ICBM in ballistic flight constantly changes speed and altitude, so it's incorrect to think of a steady speed or altitude. A two- or three-stage booster burns for a few minutes, and accelerates the payload to a velocity of 6-7 km/sec .
A scramjet (supersonic-combustion ramjet) is a ramjet engine in which the airflow through the whole engine remains supersonic. The highest speed attained by a rocket-powered airplane, NASA's X-15 aircraft, was Mach 6.7. The fastest air-breathing, manned vehicle, the SR-71, achieved slightly more than Mach 3. The X-43A more than doubled the top speed of the jet-powered SR-71.